Re: [PATCH 4/4] Documentation: devicetree: add bindings documentation for bcm63xx-uart
From: Mark Rutland <mark.rutland@arm.com>
Date: 2014-02-20 09:45:53
Also in:
linux-serial
On Wed, Feb 19, 2014 at 11:22:47PM +0000, Florian Fainelli wrote:
quoted hunk ↗ jump to hunk
Add the Device Tree binding documentation for the non-standard BCM63xx UART hardware block found in the BCM63xx DSL SoCs. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- .../devicetree/bindings/serial/bcm63xx-uart.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/bcm63xx-uart.txtdiff --git a/Documentation/devicetree/bindings/serial/bcm63xx-uart.txt b/Documentation/devicetree/bindings/serial/bcm63xx-uart.txt new file mode 100644 index 0000000..829441d --- /dev/null +++ b/Documentation/devicetree/bindings/serial/bcm63xx-uart.txt@@ -0,0 +1,24 @@ +Broadcom BCM63xx UART: Non standard UART used in the Broadcom BCM63xx DSL SoCs + +Required properties: +- compatible: must be "brcm,bcm63xx-uart" +- reg: offset and length of the register set for the device +- interrupts: device interrupt +- clocks: a phandle to the functional clock node +- clock-names: must be "periph"
Minor issues: clocks aren't just phandles, and as the clock is expected to be named it would be nice to define clocks in terms of clock-names: - clocks: a list of phandles + clock-specifiers, one for each entry in clock-names - clock-names: should contain "periph" for the functional clock Thanks, Mark.
+
+Note: each UART port must have an alias correctly numbered in the "aliases"
+node, e.g:
+
+serial0: uart@600 {
+ compatible = "brcm,bcm63xx-uart";
+ reg = <0x600 0x1b>;
+ interrupts = <GIC_SPI 32 0>;
+ clocks = <&periph_clk>;
+ clock-names = "periph";
+};
+
+aliases {
+ uart0 = &serial0;
+ uart1 = &serial1;
+};
--
1.8.3.2
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